Tasks 01-14

14/14.py

@@ -0,0 +1,53 @@
+import csv
+from collections import Counter, defaultdict
+template, rules = """
+NNCB
+
+CH -> B
+HH -> N
+CB -> H
+NH -> C
+HB -> C
+HC -> B
+HN -> C
+NN -> C
+BH -> H
+NC -> B
+NB -> B
+BN -> B
+BB -> N
+BC -> B
+CC -> N
+CN -> C
+""".strip().split('\n\n')
+with open("input") as f:
+    template, rules = f.read().strip().split('\n\n')
+rules = {k: v for k, v in (line.split(' -> ') for line in rules.split('\n'))}
+
+def f(template):
+    for _ in range(5):
+        new_template = []
+        for a, b in zip(template, template[1:]):
+            if a+b in rules:
+                new_template.append(a+rules[a+b])
+            else:
+                new_template.append(a)
+        new_template.append(template[-1])
+        new_template = ''.join(new_template)
+        template = new_template
+    return template
+
+c = Counter(f(f(template)))
+print(max(c.values()) - min(c.values()))
+
+class MyCounter(Counter):
+    def __mul__(self, n):
+        return MyCounter({k: v*n for k, v in self.items()})
+    
+d = MyCounter(zip(template, template[1:]))
+for _ in range(8):
+    d = sum((MyCounter(zip(l:=f(''.join(x)), l[1:]))*v for x, v in d.items()), start=MyCounter())
+res = defaultdict(int)
+for (a, b), v in d.items():
+    res[b] += v
+print((max(res.values()) - min(res.values())))

14/input

@@ -0,0 +1,102 @@
+VPPHOPVVSFSVFOCOSBKF
+
+CO -> B
+CV -> N
+HV -> H
+ON -> O
+FS -> F
+NS -> S
+VK -> C
+BV -> F
+SC -> N
+NV -> V
+NC -> F
+NH -> B
+BO -> K
+FC -> H
+NB -> H
+HO -> F
+SB -> N
+KP -> V
+OS -> C
+OB -> P
+SH -> N
+BC -> H
+CK -> H
+SO -> N
+SP -> P
+CF -> P
+KV -> F
+CS -> V
+FF -> P
+VS -> V
+CP -> S
+PH -> V
+OP -> K
+KH -> B
+FB -> S
+CN -> H
+KS -> P
+FN -> O
+PV -> O
+VC -> S
+HF -> N
+OC -> O
+PK -> V
+KC -> C
+HK -> C
+PO -> N
+OO -> S
+VH -> N
+CC -> K
+BP -> K
+HC -> K
+FV -> K
+KF -> V
+VF -> C
+HN -> S
+VP -> B
+HH -> O
+FO -> O
+PC -> N
+KK -> C
+PN -> P
+NN -> C
+FH -> N
+VV -> O
+OK -> V
+CB -> N
+SN -> H
+VO -> H
+BB -> C
+PB -> F
+NF -> P
+KO -> S
+PP -> K
+NO -> O
+SF -> N
+KN -> S
+PS -> O
+VN -> V
+SS -> N
+BF -> O
+HP -> H
+HS -> N
+BS -> S
+VB -> F
+PF -> K
+SV -> V
+BH -> P
+FP -> O
+CH -> P
+OH -> K
+OF -> F
+HB -> V
+FK -> V
+BN -> V
+SK -> F
+OV -> C
+NP -> S
+NK -> S
+BK -> C
+KB -> F